The Anaconda, St. Lawerence, Neversweat is a copper mine located in Silver Bow county, Montana.
About the MRDS Data:
All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.
Mine Info
Satelite View
MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.
Anaconda, St. Lawerence, Neversweat MRDS details
Site Name
Primary: Anaconda, St. Lawerence, Neversweat
Commodity
Primary: Copper
Secondary: Silver
Secondary: Gold
Secondary: Zinc
Tertiary: Arsenic
Location
State: Montana
County: Silver Bow
District: Butte District
Land Status
Not available
Holdings
Not available
Workings
Type: Underground
Ownership
Owner Name: Anaconda Co.
Home Office: Hennessy Building, Butte, Mt.
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Name: Monzonite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Pliocene
Name: Monzonite
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene
Analytical Data
Analytical Data: ANACONDA VEIN IN THE ST. LAWRENCE MINE: 2.5% CU, 3.5 OZ/TON AG
Materials
Ore: Sphalerite
Ore: Enargite
Ore: Bornite
Ore: Gold
Ore: Chalcocite
Gangue: Quartz
Gangue: Limonite
Gangue: Pyrite
Comments
Comment (Location): NEXT TO OR NOW THE NW PART OF THE BERKELEY PIT.
Comment (Deposit): 4 VEINS ARE WORKED, THE ANACONDA IS THE LARGEST, NEXT IS THE MOONLIGHT, PENNSYLVANIA, AND O'NEILL VEINS. THEY ARE CUT BY THE RARUS FAULT. THE VEINS OVERTURN AT DEPTH THAT BELOW THE 2800 LEVEL THE DIP SOUTH.
Comment (Workings): 3 MINES
Comment (Geology): MOST OF THE VEINS ARE IN THE QUARTZ MONZONITE, BUT IN THE NEVERSWEAT MINE IT IS IN APLITE ON THE 300 FT LEVEL.
References
Reference (Deposit): USGS PP 74, P. 81, 114, 115, 119, 138, PL. X.
Reference (Deposit): USGS-USBM MINERAL YEARBOOK, 1905, 1910, 1912, 1917, 1924, 1925
Reference (Deposit): AIME & PE PART 10, CHAPTER 65, P. 1387-1390.
Reference (Production): USGS-USBM MINERAL YEARBOOKS
Principal Gold Districts of Montana
In Montana, 54 mining districts have each have produced more than 10,000 ounces of gold. The largest producers are Butte, Helena, Marysville, and Virginia City, each having produced more than one million ounces. Twenty seven other districts are each credited with between 100,000 and one million ounces of gold production. Read more: Principal Gold Districts of Montana.
